Time stamp as input variable for regression (feature extraction)
@azimulh wrote: I am working on web logs and have a time-stamp variable in the format dd-mm-yyyy hh-mm-ss. I have earlier worked on date variable and found that best way to extract feature from date...
View ArticlePricing strategy for credit cards using Predictive analytics- Regression...
@Renu_S78 wrote: Hi All, I am trying to explore how predictive modeling, especially through regression, can be helpful in pricing of credit cards. Any case study, live examples or illustration of the...
View ArticleLogistic Regression not giving categorical output
@rahul.ranjan wrote: Hi All,I am new to Analytics. I have tried using Logistic Regression for the first time for Loan Prediction problem When i am trying to predict the Loan_Status variable i am...
View ArticleReading a wide dataset in R
@shaw38 wrote: I originally had a wide dataset of about 18000 columns(and about 80 rows) that I am trying to read in R. It was stored in an Excel sheet,which unfortunately has a limit of only 16384...
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Chi-square test on Megastar contest
@syed.danish wrote: Hi,I am working on megastar contest. The objective of this dataset is to predict the correct category of the working professionals in India. Below is data dictionary of the...
View ArticleDifference between & and && operators in R
@shashwat.2014 wrote: I was working on a data set while I noticed an issue with the usage of the AND operator in R. The aim was to determine the indices of the rows which had year=2011, month=1 and...
View ArticleHow to order by date in R?
@Corporate_Cowboy wrote: Hi everyone, I am new to data science and would be needing your help on an issue. I was working on Bike Sharing problem and wanted to sort my rows on the basis of date....
View ArticleHow to calculate Population SD and Variance using SAS?
@Sachin_Khanapur wrote: Hi all, I am learning descriptive statistics using SAS. If we consider the dataset that we are working on as a population then how to know the population sd and variance...
View ArticleShaplet Mining algorithm!
@rahul29 wrote: Hi, Has anybody worked on unsupervised(unlabeled) multivariate time series data set for failure prediction using shaplet mining algorithm- to create features using sub sequences and...
View ArticleData Scientist and Big Data Developer
@pareekrachit wrote: What is the difference between the role of a big data developer and a data scientist(and data analyst also)? Is knowledge of statistics necessary for big data developer also?...
View ArticleHow to convert dates into days of week in R?
@shashwat.2014 wrote: I was going through a dataset, where I had date and time in a single variable in the following format: 2011-01-01 01:00:00 I want to convert this date into the corresponding day...
View ArticleUsing Target Variable to perform Principal Component Analysis in R
@NSS wrote: This article presents the technique to incorporate the predictor variable while performing Principal Component Analysis and how it can significantly reduce the number of Principal...
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Error in plotting trends of same variable over different sets of rows...
@shashwat.2014 wrote: Hello everyone, I was working on a dataset where I want to see trends of a Categorical Variable (Minimum_Duration) for different sets of rows. Set 1: For all the rows of the...
View ArticleBest analytics/data science training for working professionals
@Rishabh0709 wrote: Hi All,Currently , what are the best options available for project based training into analytics/data science for working professionals.Thanks Posts: 1 Participants: 1 Read full...
View ArticleUsing either mean, median or mode to describe central tendency of any data
@B.Rabbit wrote: Hello People,I'm doing the Descriptive statistics course in Udacity. I understand that mean, median and mode, all three are used to describe any data. But if I have to use only one of...
View ArticlePlease suggest topics in statistics relevant to a data scientist
@Kush wrote: Hey guys, i just want to know what are the key topics in statistic which are essential for any data scientist. I have studied Bayes theorem, Gaussian. So can you guys suggest me the...
View ArticleKaggle Walkthrough on Data Science
@NSS wrote: There were times when you wished someone to walk you through the entire process of predictive modeling without having you to get into the trouble of going through all the resources...
View ArticleResolve all your queries regarding data visualization
@shashwat.2014 wrote: Hi everyone, Data visualization is one of the most powerful features of R as it allows us to go from producing basic graphs with little customization to plotting advanced graphs...
View ArticleHow to impute values row-wise in a dataframe?
@Prateek123 wrote: Hi everyone, I am new to the field of data science and would need your help in executing the task. While working on a dataset, I observed that I had to perform operations only on...
View ArticleNeed List of journals that give response to authors submitting their articles
@Gch wrote: Hello,I really need help to know the list of journals that can give quickly a preliminary response to the authors who submitted articles. Indeed, I would like to know the journals that...
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